Parts for your 2006 Toyota Prius-Rack boots

2006 Toyota Prius Rack Boots — What They Do and When to Replace

Toyota’s own technical literature and parts catalogues confirm the 2006 Prius (NHW20) uses steering rack boots. The Toyota Repair Manual (TIS) specifies inspecting the “steering gear dust boots”, and the Toyota EPC lists Boot, Steering Gear P/N 45535‑47010 for 2004–2009 Prius. So yes—rack boots are fitted and relevant.

On the Prius, the power steering is electric, not hydraulic, but it still uses a rack‑and‑pinion with inner tie rods. The rack boots are flexible bellows that seal each end of the rack, keeping grease in and road grime, water, and grit out. They also shield the inner tie‑rod joints from spray and stone damage. Healthy boots help the steering feel tight and precise, and they protect an expensive steering gear from premature wear.

Service-wise, it’s smart to have the rack boots inspected at every regular service interval (about 15,000 km or 12 months in Aus/NZ). A technician will turn the wheels lock‑to‑lock and look for splits, perishing, loose clamps, or grease flicked onto the inner guards. Because there’s no power‑steering fluid on this model, any wetness inside a boot points to grease contamination rather than a fluid leak, but it still needs attention.

If a boot is torn, replace it promptly to avoid damaging the electric rack. Boots are replaced in pairs as best practice. The job involves separating the outer tie‑rod end, removing the old clamps, sliding off the boot, cleaning the rack bar, then fitting a new boot with fresh clamps and re‑setting toe. On a high‑kilometre Prius, it’s wise to assess inner tie‑rod play at the same time.

Common signs a rack boot needs attention and tips to make them last:

• Visible cracks, splits, or missing clamps on either side of the rack.
• Grease splatter on the subframe, inner guards, or tyres near the steering knuckle.
• Notchy steering or a knock over bumps, hinting at inner tie‑rod wear.
• Rinse road salt and mud from the wheel wells, and avoid lifting the car under the rack.
• Choose quality OEM‑equivalent boots and clamps, cheap rubber perishes faster in Australasian conditions.

Done right, the steering stays quiet, direct, and durable long‑term.

Popular questions about 2006 Toyota Prius rack boots

Does the 2006 Toyota Prius have rack boots?
Yes. The NHW20 Prius uses an electric rack‑and‑pinion and has rubber rack boots on both ends to protect the rack bar and inner tie rods. They’re a normal wear item that should be inspected during routine servicing.

How often should the rack boots be inspected or replaced on a 2006 Prius?
Have them checked at each service (about every 15,000 km or 12 months). Replace immediately if cracked, split, or if clamps are loose. Many last well over 150,000 km, but age, heat, and road debris can shorten their life.

Is it safe to drive a 2006 Prius with a torn rack boot?
It’s not recommended. A torn boot lets water and grit into the rack, which can wear the inner tie rod and the rack gear. Continued driving risks notchy steering and costly rack damage. Book a replacement as soon as practical.